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Re: Raduino replacement
#bitx20
Mike aka KC2WVB
Thanks, I will talk to Bo about this. The email address listed on the help page is an error too. The address that reaches them is: teamhfsigs@... On Wed, May 23, 2018, 12:50 PM Jerry Gaffke via Groups.Io <jgaffke=[email protected]> wrote: I kind of thought there was a buy option, and that maybe it was removed when they redid the website for the uBitx. |
Re: ND6T AGC implementation for uBIT-X
开云体育Hello KeesAs I understand it for France and for 1 kit each pay $ 14 port. But what is the price for both kits? Please help me. Gilles F1BFU
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Re: ND6T AGC implementation for uBIT-X
OK, the pass 2 boards have arrived, they look good so, let er' rip.
Ordering instructions are in the attachment and a copy is in the Files section under my call. Not sure how all this is going to work out due to the qtys ....let's see. Please remember I'm still only one retired guy sitting at one table. 73 Kees K5BCQ |
Re: Raduino CAD Files
Curious.? According to section 4.3 page 27 of that document, the debugger burned into ROM supports:
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? ? USART? (or UART),? USB,? I2C,? SPI,? and? CAN I know the UART can be spoken to directly from the Arduino. Not sure about the other options. UART is probably fast enough for most of us at 57600 baud. Even if you have 512kbytes of flash to load, that's still only 512*1024*10/57600 = 91 seconds. That's just the raw UART transfer times, protocol used and waiting for flash to program will extend that best case time. I'll stick with my UART. Jerry On Wed, May 23, 2018 at 08:27 am, Jerry Gaffke wrote:
2) Use the UART debugger permanently burned into processor ROM by ST at the factory. |
Re: toggle for low output and max output?
#ubitx
On Wed, May 23, 2018 at 11:56 am, Jerry Gaffke wrote:
Or zero pots.? How's that for oversimplifying it?at least I didn't suggest two separate radios with an antenna switch... ? -- |
Re: toggle for low output and max output?
#ubitx
Or zero pots.? How's that for oversimplifying it?
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Use this feature from Ian's post, firmware changes only to control transmit gain: From? ?/g/BITX20/message/50144 ? ? 2.ATT function has been added to reduce RF gain (Shift 45Mhz IF) Courtesy of VK2ETA: ? ??/g/BITX20/message/46235 ? ??/g/BITX20/message/46241 Another possibility:? A bunch of resistors in your antenna line to give a 3dB attenuator. But your extra pots or front panel RF control could also be made to work, use coax. I'd say that's way too complicated.? ;-) Jerry, KE7ER On Wed, May 23, 2018 at 11:41 am, Doug W wrote: I have a feeling I am oversimplifying this.? It looks like Allison is getting closer to figuring out how to flatten the power output across all bands.? That is very exciting and a huge improvement.? However, it got me thinking.? Right now I am getting a little over 9w on 80m and about 8w on 40m.? Lately I have been spending time on 30m and 20m digital which both have an output under 5w keeping me in legit QRP range.? Let's assume Allison's project works and she shares it and I can figure it out.? To pick an arbitrary number let's also assume that my rig as an example post mod puts out a fairly even 9w across all bands.? That keeps us QRP for voice but not CW or data.? If I wanted to be able to switch back and forth is it feasible to connect two bias pots with a toggle switch and adjust one trimmer for 5w and one trimmer for 9w output?? For that matter what about 3 pots on a selector switch setting one more at 1w to drive an external amp?? As I ramble I wonder if you could also just bring the pot to the front panel and figure out a power meter but I like the idea of a set it and forget it switch.? Would this work or am I just exposing the gaps in my understanding? |
toggle for low output and max output?
#ubitx
I have a feeling I am oversimplifying this.? It looks like Allison is getting closer to figuring out how to flatten the power output across all bands.? That is very exciting and a huge improvement.? However, it got me thinking.? Right now I am getting a little over 9w on 80m and about 8w on 40m.? Lately I have been spending time on 30m and 20m digital which both have an output under 5w keeping me in legit QRP range.? Let's assume Allison's project works and she shares it and I can figure it out.? To pick an arbitrary number let's also assume that my rig as an example post mod puts out a fairly even 9w across all bands.? That keeps us QRP for voice but not CW or data.? If I wanted to be able to switch back and forth is it feasible to connect two bias pots with a toggle switch and adjust one trimmer for 5w and one trimmer for 9w output?? For that matter what about 3 pots on a selector switch setting one more at 1w to drive an external amp?? As I ramble I wonder if you could also just bring the pot to the front panel and figure out a power meter but I like the idea of a set it and forget it switch.? Would this work or am I just exposing the gaps in my understanding?
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Re: Raduino CAD Files
Teensy is good to, Paul does an incredible job supporting his products.
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I have one, have played with it some, very nice. About to dig it out, need to set it up as a frequency counter to help with those Nano resonator birdies. I was looking at the mkrzero in part because if building something in volume with the chip directly on my board, I'd much prefer to have the processor in an LQFP rather than a BGA. A correction for my previous post: < But any libraries have not. > But many libraries have not. Jerry On Wed, May 23, 2018 at 11:22 am, Jerry Gaffke wrote: If you are happy with ArduinoLand and prefer to stay, |
Re: Raduino CAD Files
Yes, Roger Clark is your go-to guy for anything Blue Pill.
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Arduino libraries were coded originally for the ATMega processors from Atmel. The basic libraries have been ported to the Blue Pill and similar, mostly by Roger. But any libraries have not. Generally, EEPROM is not on those processors. So an EEPROM library for an ARM chip would probably fake it by using flash. Much slower on writes, but in most cases it works. If you are happy with ArduinoLand and prefer to stay, this guy would be a very good choice in an ARM processor: ? ?? That's an Atmel processor, not ST. Sold by the Arduino people, fully supported by the IDE. Though I'm sure there are some Arduino libraries cooked up by others that haven't been ported. I like the STM32F line of processors,? A family of parts available in pin compatible 48 and 64 pin LQFP's, from sub-Nano at sub-buck prices to almost Teensy killers (M4 with floating point hardware). That ultra low power STM32L line of processors mentioned in post 50037 is also pin compatible. STM32L151xC STM32L152xC UlJerry On Wed, May 23, 2018 at 10:13 am, Allen Merrell wrote: Jerry |
Re: RF power chain mods and improvements..
Allison, If I'm looking at the correct parts, it looks like those 4 transistors would cost about $10 USD total when purchased in single quantities. That's really not that big of an investment into a fine little radio. I appreciate all your hard work! Regards, Mike M. KU4QO On Wed, May 23, 2018 at 11:35 AM, ajparent1/KB1GMX <kb1gmx@...> wrote: so far my results confirm that using <snip>? Now I wait for lower cost parts. |
Re: Raduino CAD Files
Jerry
Lol, I agree . Yesterday was the first time I had played with the blue pill in about 2 years. I had to relearn again. I find myself using STLINK ?v2 ?most of the time. I have used the other methods including using a Discovery F4 board to do it with which envolves ?using stlink program and hex ?file , works fine but a problem to set up. Yes and don't ?forget moving the jumper on boot 0 . All I have ever got to load and run on it are simple programs never been able to get anything as complex as the uBitx firmware. I seem to be missing some of the needed files for the stm that are already in their for the Arduino . ?I did see where one of the stm people was doing some rewrite ?on some of it especially the EEPROM ?which was something I always had errors ?in. This is why the blue pills I have have not been touched in 2 years. This thing does have some serious ?potential ?and a very good price. I know someone here on this site will get this thing up and going. ?Roger Clark has some very good information ?on it. 73's ?kn4ud -- Allen ?Merrell |
Re: W8TEE source code
Rod Davis
开云体育Jack, the ambiguous "it" was the teensy that runs the
filters and mic processing code I have not thought out a user interface. I like
the idea of an independent teensy, Rod
On 05/23/2018 09:27 AM, Jack Purdum via
Groups.Io wrote:
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Re: Raduino replacement
#bitx20
I kind of thought there was a buy option, and that maybe it was removed when they redid the website for the uBitx.
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Special address is in the second paragraph here:?? I think you should ask Bo first. He wants a uBitx without a Raduino. A match made in heaven. If the rig really did arrive non-functional and this was not some miswire issue,?hfsignals should at least be told Jerry On Wed, May 23, 2018 at 09:20 am, Mike aka KC2WVB wrote:
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Re: boosting the power on 28 MHz
#ubitx
Gordon Gibby
开云体育Yes, thank you Allison!!, I thought that, but I wanted to be certain. I’ve been watching all the discussion on this and all the other modifications. ? Life is a bit busy for me but it won’t be too much longer and I’ll get a chance to work on some of that.
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Re: W8TEE source code
Jack Purdum
Rod: It is Open Source. Google "mic compressor" and see if our speech compressor doesn't do what you're thinking about. When you say "it", what is the "it" you're referring to? Jack, W8TEE
On Wednesday, May 23, 2018, 12:24:01 PM EDT, Rod Davis <km6sn@...> wrote:
Hi Jack, For my uBITX: I have not been following the threads closely: is your software GPL open source? I would like to just implement the rx filters. I would also like to implement a mic high pass
filter, followed by clipping, followed by a low pass I am not so sure about mic compressing. However, that introduces the issue of how to control it without an additional USB cable.
Regards, Rod KM6SN
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W8TEE source code
Rod Davis
开云体育Hi Jack, For my uBITX: I have not been following the threads closely: is your software GPL open source? I would like to just implement the rx filters. I would also like to implement a mic high pass
filter, followed by clipping, followed by a low pass I am not so sure about mic compressing. However, that introduces the issue of how to control it without an additional USB cable.
Regards, Rod KM6SN
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